Asteroid occultation event on 2019 June 14

Exoplanet occultation, asteroid occultation,
solar research, comet observation, astrometry, etc.
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Asteroid occultation event on 2019 June 14

文章 PTS » 週四 18 4月, 2019 13:51

Asteroid occultation event on 2019 June 14

I've prepared finder charts from:
Digital Sky Survey (15 x 15 arcmin) and The Sky 6 (15x11 arcmin)
---------------------------------------------------------------------------------------------------

IOTA/IOTA-ES occultation update for
(1) Ceres / TYC 6205-00960-1 event on 2019 Jun 14, 12:08 UT
Visible from SE Asia


Summary
-------
On 2019 Jun 14 UT, the 960.9 km diameter asteroid (1) Ceres will occult a 11.0
mag star in the constellation Scorpius for observers along a path across SE
Asia.

In the case of an occultation, the combined light of the asteroid and the star
will drop by 0.04 mag to 7.37 mag (the magnitude of the asteroid) for at most
89.1 seconds.

This update is based on UNSO/Flagstaff astrometry for the asteroid kindly
provided by Hugh Harris, astrometry for the asteroid kindly provided by Bill
Owen, astrometry for the asteroid kindly provided by the IAU Minor Planet
Center.

This work has made use of data from the European Space Agency (ESA)
mission Gaia (http://www.cosmos.esa.int/gaia), processed by the
Gaia Data Processing and Analysis Consortium
(DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium).
Funding for the DPAC has been provided by national institutions, in
particular the institutions participating in the Gaia Multilateral Agreement.

The event at a glimpse
----------------------
* Rank: 100
* date and approx. time of event: 2019 Jun 14, 11:57 - 2019 Jun 14, 12:15
* geocentric midpoint of event [JD]: 2458649.00438333
* magnitude of target star: 10.99
* magnitude drop [mag]: 0.04
* estimated maximum duration [s]: 89.1
* Moon: 91 % sunlit, 15° distance
* Sun: 160° distance
* rough path description: SE Asia

Additional comments
-------------------
extremely low mag drop

The occultation path
--------------------
* approximate projected width [km]: 1234
* 1 sigma uncertainty interval [path widths]: +/- 0.02
* 1 sigma uncertainty interval [seconds]: +/- 2.0
* 1 sigma uncertainty interval approx RA,DE ["]: (+/- 0.019, +/- 0.012)
* 1 sigma uncertainty ellipse (major, minor, PA): (0.020", 0.011", 111°)
* approx speed of asteroid's shadow [km/s]: 10.7815
* website for maps:
http://www.asteroidoccultation.com
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